Bruker Kappa APEXII diffractometer	6333 independent reflections
Radiation source: fine-focus sealed tube	4536 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.029
ω and φ scan	θmax = 29.5°, θmin = 2.4°
Absorption correction: multi-scan (SADABS; Sheldrick, 1996)	h = −11→11
Tmin = 0.922, Tmax = 0.943	k = −11→11
25531 measured reflections	l = −20→22